Bepackable oil filtering cartridge



Dec. 23, 1952 c. c. scHULTz REPACKABLE'OIL FILTER CARTRIDGE 2 SHEETS-SHEET l Snvar'or Char/c5 C. .Schu/f5 Dec. 23, 1952 C. Q SCHULTZ Ref23,604

REPACKABLE OIL. FILTER CARTRIDGE Original Filed June lo, 1949 2SHEETS--SHEET :L

gnven'or ATTOPNE Y Ressued Dee. 23, 1952 Original No. 2,559,133, datedJuly 3. 1951, Serial No. 70,037, January 10,1949. lApplication forreissue August 10, 1951, Serial No. 242,770

(Cl. B-183) Matter enclosed in heavy brackets [l] appears in theoriginal patent but forms no part of this reissue specliication: matterprinted in italics indicates the additions made by reissue.

7 Claims.

My invention relates to a repackable filter cartridge for use within acase in the process of elimination of sludge and such foreign matteifromthe oil used in lubricationl of engines, with particular reference tointernal combustion engines, and comprises such parts as will allow thefiltering material contained therein to be ejected by hand forreplacement with a fresh supply.

The advantage of my invention is that the filtering material, such asordinary waste. is

L, slidably ejectable from the perforated cartridge shell, and thecartridge as a container for the "waste" is usable indefinitely, and isrepackable with clean "waste when necessary.

A further advantage is that the waste" may be readily examined toascertain that proper filtering is taking place without having todestroy the cartridge, as is the case with conventional oil filteringcartridges.

Still further advantages are that this cartridge is of very simplevconstruction, and its main object provides for quick inspection andrepacking, and that there are no screws or nuts to manipulate, and theends of a locking bale are merely drawn together to eject the contentsby pushing a bottom plate upwardly inside the cartridge shell.

l and fits over the saidcentre tube 3.

With the above-mentioned objects and ad- I vantages in view, thisinvention consists in the novel features of construction hereinafterdescribed and claimed, and in the drawings accompanying thisspecification it must be observed that similar numerals refer to similarparts throughout the different views.

Fig. 1 is a fragmented elevational view of the 011 cartridge.

Fig. 2 is a fragmented plan view.

Fig. 3 is a sectional view showing the built-in upper and lower sealsand the supporting hollow bolt.

Fig. 4 shows the base push plate and the attached perforated tube.

In the drawings the numeral I refers to a circular tapered cartridge orcartridge shell for use with oil filters and'yhaving perforations Iapertured through the wall thereof. This cartridge wall is tapered froma larger top diameter to its lesser diameter bottom opening asunderstood when in its normal operational position, in order tofacilitate its removal from an oil containing oil filter case (notshown).

A tube l is centrally disposed within the cartridge, and is alsoperforated as at la throughout its length within the cartridge. The tubeis axially parallel with the cartridge and projects above the top ofsame. A circular push plate i 2 is aiiixed to the bottom end of saidtube l and fits closely within the bottom of the cartridge, and isloosely slidable therewithin from bottom to top. A circular flange lacts as a stop to hold this plate l within the cartridge.

A hollowed cartridge-supporting bolt t has an oil-passaging aperture llocated within the height of the cartridge. 'Ihe juncture of the tube lwithin the plate 4 is so formed as to provide a sealing plug I betweenthe said bolt t and the slidably contacted plug. A second sealing plug 9within and near the top of the tube 3 within the height of the cartridgeconfines the oil passing through the perforations 3a to the annularspace between tube 3 and bolt 6. From this space the oil passes throughthe aperture 1 for escape through the said oi1passaging bolt 8.

The cartridge shell i is filled with oil filtering material l0 such asordinary waste, surrounding the tube 3, and which material is held inplace by means of an annular top covering disc I l siidable within thetop of the cartridge,

A handling bale i2 is sprung into diametrically disposed holes II in thecartridge wall, and acts as a retainer in its vertical or at positionsto keep the flat disc Il in place on top of the filter waste.

To release the top disc Il4 the ends of the bale are drawn together andthe bale removed, and to eject the waste" the bottom plate l is pushedupwardly and slidably through the cartridge shell. When repacked withclean waste" the cartridge is placed in an oil filled conventional oilfilter case. and the oil passes through the perforations l filteringthrough the waste, thence passing through the apertures la into the tube3 and out through the hollow bolt B by way of the aperture I therein forreturn to the lubricating system. This oil passaging process may bereversed in direction from the inside of the bolt 6 to and through thecartridge wall. 'Ihe top [elge] edge of the cartridge wall may bereinforced with an added band It.

Although this invention has been described in its preferred form with acertain degree of particularity, it is understood that the presentdisclosure of the preferred form has been made only by way of exampleand that numerous changes in the details of construction and thecombination and arrangement of parts may be resorted to withoutdeparting from the spirit and the scope of the invention as hereinafterclaimed.

What is claimed is: y

l. In a perforated cylindrical type oil filtering cartridge as describedfor immersion in an oil as,eo4 y .4 3 i'llied container. and containingfiltering material. an outer cartridge filter wall, a central perfaratedtube within the outer cartridge filter wall filtering materialtherefrom, means at the base end of said [container] outer cartridgefilter wall to retain the said disc therein. an annular top discslidable on said tube to hold the filtering material in place within theouter cartridge filter wall and a bale sprung into holes in the outercartridge filter wall to retain said top disc in place.

2. A repackable type oil filter cartridge comprising an outercylindrically shaped filtering waste container slightly tapered for easyremoval from its case, and with wall periorations. filtering waste insaid container, a central columnar perforated tube within said outercontainer and in spaced relationship therewith and affixed at one end toa circular push plate slidable through said container upwardly from thelesser diameter loosely towards the greater inside diameter thereof toremove the waste, a turned in flange around the base of said containerto retain said push plate, an annular disc slidable over the upper endof said central tube to hold the waste in place within said container, abale sprung into holes in the container wall to retain said disc inplace, and means to slidably support said tube in a sealed manner ateach end thereof on a lter cartridge supporting bolt for the passage anddelivery of oil therethrough as received from the said tube.

3. A repaclcable cartridge for a liquid filter having a liquid ductthrough which liquid flows, said repackable cartridge comprising anannular shell having a plurality of openings through which liquid mayflow, said annular shell having first and second open ends. a tubularelement disposed in said shell and having a plurality of aperturesthrough which liquid may flow, said tubular element and said shellproviding an annular space for filtering material, said tubular elementbeing arranged for fluid connection to the liquid duct of the filter forflow of liquid through said apertures in said tubular element, endsupport means extending laterally of said anular space for effectingsaid filtering material from said shell, said end support means beingdisposed at the first end of said shell and connected to an end of saidtubular element for holding said filtering material tn the annularspace, said end support means slidably insertably fitting in said shellfrom said second end, stop means connected to the shell and extendinginwardly from the first end portion thereof to arrest the movement ofsaid end support means from sliding out of said first end, said stopmeans and said end support means supporting said tubular element withinsaid shell, a removable cover at the second end of the shell and holdingthe filtering material in said shell at said second end, and readilyoperable means to removably hold said removable cover in place at saidsecond end off-the shell, said end support means being slidablyefectable from said shell in the direction of said first end to saidsecond end and thereby forcing said filtering material from said shellahead ofsaid end support means. I

4. In a liquid filter havinga supporting bolt hollowed with aside-aperture for the passage of liquid therethrough, a repackablecartridge for said liquid filter, mid repackable cartridgecomprising anannular shell having a plurality of openings through which liquid mayflow, said annular shell having first and second open ends, a tubularelement having first and second end portions and disposed in said shelland having `a plurality of apertures through which liquid may flow, saidtubular element being slidably mounted on and in spaced relationshipwith the supporting bolt, said tubular element and said shell providingan annular space for filtering material, said end portions of thetubular element on opposite sides of said side-aperture, re-

spectively, having a slidable seal connection withsaid supporting bolt,end support means extending laterally of said annular space for efectingsaid filtering material from said shell, said end support means beingdisposed at the first end of said shell and connected to the first endportion of said tubular element for holding said filtering material inthe annular space, said end support means slidably insertably fitting insaid shell from said second end, stop means connected to the shell andextending inwardly from the first end portion thereof to arrest themovement of said endsupport means from sliding out of said first end,said stop means and said end support means supporting said tubularelement within said shell, a removable cover at the second end of theshell and holding the filtering material in said shell at said secondend, and readily operable means to removably hold said removable coverin pkzce at said second end of the shell, said 'end support means beingslidably efectable from said shell in the direction of said first end tosaid second end and thereby forcing said filtering material from saidshell ahead of said end support means.

5. A repackable cartridge Vfor a liquid filter having a liquid ductthrough which liquid flows. said repaclcable cartridge comprising anannular shell having a plurality of openings through which liquid mayflow, said annular shell having first and second open ends, a tubularelement disposed in said shell and having a plurality of aperturesthrough which liquid may flow, said` tubular element and said shellproviding an annular space for filtering material, said tubular elementbeing arranged for fluid connection to the liquid duct of the filter forflow of liquid through said apertures in said tubular element, endsupport means extending laterally of said annular space for ejectingsaid filtering material from said shell, said end support means beingdisposed at the first end of said shell and connected to an end of saidtubular element for holding said filtering material in the annularspace, said end support means slidably-insertably fitting in said shellfrom said second end. stop means connected to the shell and extendinginwardly from the first end portion thereof to arrest the movement ofsaid end support means from sliding out of said first end, said stopmeans and said end support means supporting said tubular element withinsaid shell, a removable cover at the second end of the shell and holdingthe filtering material in said shell at said second end, and readilyoperable meansv to removably hold said removable cover in place at saidsecond end which liquid may flow, said annular shell having first andsecond open a tubular element having first and second end portions anddisposed in said shell and having a plurality of apertures through whichliquid'may flow, said tubular element and said shell providing anannular space for filtering material, said tubular element beingarranged for fluid connection to the liquid duct of the filter for flowof liquid through said apertures in said tubular element, end supportmeans extending laterally of said annular space for efecting saidfiltering material from said shell, said end support means beingdisposed at the first end of said shell and connected to the first endportion of said tubular element for holding said filtering materialinthe annular space, said end support means slidably insertably fittingin said shell from said second end, stop means connected to the shelland extending inwardly fnom the first end portion thereof to arrest themovement of said end support means from sliding out of said first end,said stop means and said end support means supporting said tubularelement within said shell, a removable cover slidably mounted on thesecond end portion of the tubular element at the second end of the'shelland holding the filtering material in said shell at said second end, andreadily operable means to removably hold said removable cover in placeat said second end of the shell, said end support means being slidablyvefectable from said shell in the direction of said first end to saidsecond end and thereby forcing said filtering material from said shellahead of said end support means.

7. A repackable cartridge for a liquid filter having a liquid ductthrough which liquid flows,

said repackable cartridge comprising an annular shell having a pluralityof openings through which liquid may flow, said annular shell havingfirst and second open ends, a tubular element disposed in said shell andhaving a plurality of apertures through which liquid may flow, saidtubular element and said shell providing lan annular space for filteringmaterial, said tubular element being arranged for fluid connection tothe liquid duct of the filter for flow of liquid through said aperturesin said tubular element, end support means extending laterally of saidannular space for efecting said filtering material from said shell, saidend support means being disposed at the first end of said shell andconnected to an end of said tubular element for holding said filteringmaterial in the annular space, said end support means slidablyinsertably fitting in said shell from said second end, stop meansconnected to the shell and extending inwardly from the first end portionthereof to arrest the movement of said end support means from slidingout of said first end, said stop means and said end support meanssupporting said tubular element within said shell, a removable -cover atthe second end of the shell and holding the filterable material in saidshell at said second end, and readily operable means engaging said shellat the second end thereof to removably hold said removable cover inplace at said second end of the shell, said end support means beingslidably efectable from said shell in the direction of said first end tosaid second end and thereby forcing said filtering material from saidshell ahead of said end support means.

CHARLES C. SCHULTZ.

REFERENCES CITED The following references are of record in the le ofthis patent or the original patent:

UNITED STATES PATENTS Number Name Date 1,930,209 Milkey Oct. 10, 19332,247,445 Long July 1, 1941 2,275,481 Wilkinson Mar. 10, 1942 2,280,033Aldham Apr. 14, 1942 2,294,262 Wilkinson Aug. 25, 1942 2,342,948 LongFeb. 29, 1944 `2,364,240 Parry Dec. 5, 1944 2,463,929 West Mar. 8, 1949OTHER REFERENCES Filtration and Filters, Pickard, pp. 33 and 34. ErnestBenn Lmt., 1929. Y

